Home / 12,979,964.22-17,917,865.98-8,087,603.52

Finding the Fourth Proportional to 12,979,964.22, 17,917,865.98 and 8,087,603.52

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Solution

The fourth proportional to 12,979,964.22, 17,917,865.98 and 8,087,603.52 is: 11,164,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,964.22 : 17,917,865.98 = 8,087,603.52 : x
  2. Step 2: Convert to fraction form
    12,979,964.22/17,917,865.98 = 8,087,603.52/x
  3. Step 3: Cross multiply
    12,979,964.22x = 17,917,865.98 × 8,087,603.52
  4. Step 4: Simplify right side
    12,979,964.22x = 144,912,595,970,736.25
  5. Step 5: Solve for x
    x = 144,912,595,970,736.25/12,979,964.22
  6. Step 6: Final answer
    x = 11,164,329.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.